Some automatic gate primers
Choosing your electric gate opener is not a decision to be taken lightly. Once you've chosen the shade of wrought iron that best matches your collection of garden statues and driveway fountain, where do you get an appropriate automatic opener that is both discreet and functional? When inviting guests home after the theater, will you need a quick shutting gate to lock out those who assumed to be invited?
But what to consider? Aren't all electric gate openers the same? Far from it. First look at the construction and size of your gate. A tube gate (cylindrical iron used in fencing in farm animals rather than exclusionary uses) requires different mounting mechanisms than a panel or wrought iron gate. If you have very wide and heavy leafs to your gate, you'll need the strongest opening arms available. With big gates, chances are a good push will create a gap big enough for transients and large animals, necessitating an automatic gate lock.
Fully loaded
Typical features that come standard are the obstruction sensing, gate sequencing, and automatic close. All these options are adjustable. For example, your electric fence can be set to change direction when it touches something big and heavy, like your automobile. But it will continue closing when something smaller is in its path, like a man. The speeds are usually adjustable too, but mostly dependent on size. Some gates can close in about 18 seconds. Gate sequencing means triggering the first gate will then open your secondary gates followed by the tertiary. Electric gate openers will then maintain the gates open for anywhere from zero to 120 seconds.
In the event of a malfunction or the misplacement of the remote gate opener, many opening systems are mounted on pins that can be unlocked for manual operation. Even this problem is not likely, as you will have arranged for a keypad with coded entry and maybe even equipped your electric gate opener with solar panels and batteries.
More information on gate openers